Donatello's story has him and April (with a little help from Casey) constructed the world's first compact fusion generator out of designs from the future, solving Earth's energy crisis and forming O'Neil Tech. Many alien races came to Earth, especially the Utroms, who granted Don a tour of the universe. Unfortunately, the ship he was on was hit by a meteor storm, during which Don was critically injured. Despite their efforts, the Utroms were only able to save his brain (with his bandana serving as his eyes) and therefore presented him with a new robotic body -- a prototype version of none other than Serling! After that story, the Turtles notice Serling passing by as Raph claims that he hopes he doesn't mess up like his brothers did in their stories.